/Engine/Plugins/Animation/LiveLink/Source/LiveLink/Public/LiveLinkTimeSynchronizationSource.h
Get the time of the newest available sample (relative to this source's frame rate). Note, in cases where Rollover is allowed and has occurred, this may have a lower value than GetOldestSampleTime.
virtual [FFrameTime](API\Runtime\Core\Misc\FFrameTime) GetNewestSampleTime() const